BMW 3 Series (2015) is 37 mm (1.46 inch) higher, 415 kg (915 lbs) lighter and has 21 liters (0.74 ft3) bigger cargo space than BMW 6 Series Gran Coupe (2016).
BMW 6 Series Gran Coupe (2016) is 385 mm (15.16 inch) longer and 85 mm (3.35 inch) wider than BMW 3 Series (2015).
